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Finding the Fourth Proportional to 218,230,286.40, 327,345,429.60 and 218,230,286.40

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Solution

The fourth proportional to 218,230,286.40, 327,345,429.60 and 218,230,286.40 is: 327,345,429.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,230,286.40 : 327,345,429.60 = 218,230,286.40 : x
  2. Step 2: Convert to fraction form
    218,230,286.40/327,345,429.60 = 218,230,286.40/x
  3. Step 3: Cross multiply
    218,230,286.40x = 327,345,429.60 × 218,230,286.40
  4. Step 4: Simplify right side
    218,230,286.40x = 71,436,686,853,339,048
  5. Step 5: Solve for x
    x = 71,436,686,853,339,048/218,230,286.40
  6. Step 6: Final answer
    x = 327,345,429.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.